text: /******************************************************************************
   * Copyright © 2014-2018 The SuperNET Developers.                             *
   *                                                                            *
   * See the AUTHORS, DEVELOPER-AGREEMENT and LICENSE files at                  *
   * the top-level directory of this distribution for the individual copyright  *
   * holder information and the developer policies on copyright and licensing.  *
   *                                                                            *
   * Unless otherwise agreed in a custom licensing agreement, no part of the    *
   * SuperNET software, including this file may be copied, modified, propagated *
   * or distributed except according to the terms contained in the LICENSE file *
   *                                                                            *
   * Removal or modification of this copyright notice is prohibited.            *
   *                                                                            *
   ******************************************************************************/
  
  #include "komodo_defs.h"
  
  #define USD 0
  #define EUR 1
  #define JPY 2
  #define GBP 3
  #define AUD 4
  #define CAD 5
  #define CHF 6
  #define NZD 7
  
  #define CNY 8
  #define RUB 9
  #define MXN 10
  #define BRL 11
  #define INR 12
  #define HKD 13
  #define TRY 14
  #define ZAR 15
  
  #define PLN 16
  #define NOK 17
  #define SEK 18
  #define DKK 19
  #define CZK 20
  #define HUF 21
  #define ILS 22
  #define KRW 23
  
  #define MYR 24
  #define PHP 25
  #define RON 26
  #define SGD 27
  #define THB 28
  #define BGN 29
  #define IDR 30
  #define HRK 31
  
  #define MAX_CURRENCIES 32
  extern char CURRENCIES[][8];
  
  uint64_t M1SUPPLY[] = { 3317900000000, 6991604000000, 667780000000000, 1616854000000, 331000000000, 861909000000, 584629000000, 46530000000, // major currencies
      45434000000000, 16827000000000, 3473357229000, 306435000000, 27139000000000, 2150641000000, 347724099000, 1469583000000, 749543000000, 1826110000000, 2400434000000, 1123925000000, 3125276000000, 13975000000000, 317657000000, 759706000000000, 354902000000, 2797061000000, 162189000000, 163745000000, 1712000000000, 39093000000, 1135490000000000, 80317000000,
      100000000 };
  
  #define MIND 1000
  uint32_t MINDENOMS[] = { MIND, MIND, 100*MIND, MIND, MIND, MIND, MIND, MIND, // major currencies
      10*MIND, 100*MIND, 10*MIND, MIND, 100*MIND, 10*MIND, MIND, 10*MIND, MIND, 10*MIND, 10*MIND, 10*MIND, 10*MIND, 100*MIND, MIND, 1000*MIND, MIND, 10*MIND, MIND, MIND, 10*MIND, MIND, 10000*MIND, 10*MIND, // end of currencies
  10*MIND,
  };
  
  int32_t Peggy_inds[539] = {289, 404, 50, 490, 59, 208, 87, 508, 366, 288, 13, 38, 159, 440, 120, 480, 361, 104, 534, 195, 300, 362, 489, 108, 143, 220, 131, 244, 133, 473, 315, 439, 210, 456, 219, 352, 153, 444, 397, 491, 286, 479, 519, 384, 126, 369, 155, 427, 373, 360, 135, 297, 256, 506, 322, 425, 501, 251, 75, 18, 420, 537, 443, 438, 407, 145, 173, 78, 340, 240, 422, 160, 329, 32, 127, 128, 415, 495, 372, 522, 60, 238, 129, 364, 471, 140, 171, 215, 378, 292, 432, 526, 252, 389, 459, 350, 233, 408, 433, 51, 423, 19, 62, 115, 211, 22, 247, 197, 530, 7, 492, 5, 53, 318, 313, 283, 169, 464, 224, 282, 514, 385, 228, 175, 494, 237, 446, 105, 150, 338, 346, 510, 6, 348, 89, 63, 536, 442, 414, 209, 216, 227, 380, 72, 319, 259, 305, 334, 236, 103, 400, 176, 267, 355, 429, 134, 257, 527, 111, 287, 386, 15, 392, 535, 405, 23, 447, 399, 291, 112, 74, 36, 435, 434, 330, 520, 335, 201, 478, 17, 162, 483, 33, 130, 436, 395, 93, 298, 498, 511, 66, 487, 218, 65, 309, 419, 48, 214, 377, 409, 462, 139, 349, 4, 513, 497, 394, 170, 307, 241, 185, 454, 29, 367, 465, 194, 398, 301, 229, 212, 477, 303, 39, 524, 451, 116, 532, 30, 344, 85, 186, 202, 517, 531, 515, 230, 331, 466, 147, 426, 234, 304, 64, 100, 416, 336, 199, 383, 200, 166, 258, 95, 188, 246, 136, 90, 68, 45, 312, 354, 184, 314, 518, 326, 401, 269, 217, 512, 81, 88, 272, 14, 413, 328, 393, 198, 226, 381, 161, 474, 353, 337, 294, 295, 302, 505, 137, 207, 249, 46, 98, 27, 458, 482, 262, 253, 71, 25, 0, 40, 525, 122, 341, 107, 80, 165, 243, 168, 250, 375, 151, 503, 124, 52, 343, 371, 206, 178, 528, 232, 424, 163, 273, 191, 149, 493, 177, 144, 193, 388, 1, 412, 265, 457, 255, 475, 223, 41, 430, 76, 102, 132, 96, 97, 316, 472, 213, 263, 3, 317, 324, 274, 396, 486, 254, 205, 285, 101, 21, 279, 58, 467, 271, 92, 538, 516, 235, 332, 117, 500, 529, 113, 445, 390, 358, 79, 34, 488, 245, 83, 509, 203, 476, 496, 347, 280, 12, 84, 485, 323, 452, 10, 146, 391, 293, 86, 94, 523, 299, 91, 164, 363, 402, 110, 321, 181, 138, 192, 469, 351, 276, 308, 277, 428, 182, 260, 55, 152, 157, 382, 121, 507, 225, 61, 431, 31, 106, 327, 154, 16, 49, 499, 73, 70, 449, 460, 187, 24, 248, 311, 275, 158, 387, 125, 67, 284, 35, 463, 190, 179, 266, 376, 221, 42, 26, 290, 357, 268, 43, 167, 99, 374, 242, 156, 239, 403, 339, 183, 320, 180, 306, 379, 441, 20, 481, 141, 77, 484, 69, 410, 502, 172, 417, 118, 461, 261, 47, 333, 450, 296, 453, 368, 359, 437, 421, 264, 504, 281, 270, 114, 278, 56, 406, 448, 411, 521, 418, 470, 123, 455, 148, 356, 468, 109, 204, 533, 365, 8, 345, 174, 370, 28, 57, 11, 2, 231, 310, 196, 119, 82, 325, 44, 342, 37, 189, 142, 222, 9, 54, };
  
  uint64_t peggy_smooth_coeffs[sizeof(Peggy_inds)/sizeof(*Peggy_inds)] =	// numprimes.13
  {
      962714545, 962506087, 962158759, 961672710, 961048151, 960285354, 959384649, 958346426, 957171134, // x.8
      955859283, 954411438, 952828225, 951110328, 949258485, 947273493, 945156207, 942907532, 940528434, // x.17
      938019929, 935383089, 932619036, 929728945, 926714044, 923575608, 920314964, 916933485, 913432593, // x.26
      909813756, 906078486, 902228342, 898264923, 894189872, 890004874, 885711650, 881311964, 876807614, // x.35
      872200436, 867492300, 862685110, 857780804, 852781347, 847688737, 842505000, 837232189, 831872382, // x.44
      826427681, 820900212, 815292123, 809605581, 803842772, 798005901, 792097186, 786118864, 780073180, // x.53
      773962395, 767788778, 761554609, 755262175, 748913768, 742511686, 736058231, 729555707, 723006417, // x.62
      716412665, 709776755, 703100984, 696387648, 689639036, 682857428, 676045100, 669204315, 662337327, // x.71
      655446378, 648533696, 641601496, 634651978, 627687325, 620709702, 613721256, 606724115, 599720386, // x.80
      592712154, 585701482, 578690411, 571680955, 564675105, 557674825, 550682053, 543698699, 536726645, // x.89
      529767743, 522823816, 515896658, 508988029, 502099660, 495233249, 488390461, 481572928, 474782249, // x.98
      468019988, 461287675, 454586804, 447918836, 441285195, 434687268, 428126409, 421603932, 415121117, // x.107
      408679208, 402279408, 395922888, 389610779, 383344175, 377124134, 370951677, 364827785, 358753406, // x.116
      352729449, 346756785, 340836251, 334968645, 329154729, 323395230, 317690838, 312042206, 306449955, // x.125
      300914667, 295436891, 290017141, 284655897, 279353604, 274110676, 268927490, 263804394, 258741701, // x.134
      253739694, 248798623, 243918709, 239100140, 234343077, 229647649, 225013957, 220442073, 215932043, // x.143
      211483883, 207097585, 202773112, 198510404, 194309373, 190169909, 186091877, 182075118, 178119452, // x.152
      174224676, 170390565, 166616873, 162903335, 159249664, 155655556, 152120688, 148644718, 145227287, // x.161
      141868021, 138566528, 135322401, 132135218, 129004542, 125929924, 122910901, 119946997, 117037723, // x.170
      114182582, 111381062, 108632643, 105936795, 103292978, 100700645, 98159238, 95668194, 93226942, // x.179
      90834903, 88491495, 86196126, 83948203, 81747126, 79592292, 77483092, 75418916, 73399150, // x.188
      71423178, 69490383, 67600142, 65751837, 63944844, 62178541, 60452305, 58765515, 57117547, // x.197
      55507781, 53935597, 52400377, 50901505, 49438366, 48010349, 46616844, 45257246, 43930951, // x.206
      42637360, 41375878, 40145912, 38946876, 37778185, 36639262, 35529533, 34448428, 33395384, // x.215
      32369842, 31371249, 30399057, 29452725, 28531717, 27635503, 26763558, 25915365, 25090413, // x.224
      24288196, 23508216, 22749980, 22013003, 21296806, 20600917, 19924870, 19268206, 18630475, // x.233
      18011231, 17410035, 16826458, 16260073, 15710466, 15177224, 14659944, 14158231, 13671694, // x.242
      13199950, 12742625, 12299348, 11869759, 11453500, 11050225, 10659590, 10281262, 9914910, // x.251
      9560213, 9216856, 8884529, 8562931, 8251764, 7950739, 7659571, 7377984, 7105706, // x.260
      6842471, 6588020, 6342099, 6104460, 5874861, 5653066, 5438844, 5231969, 5032221, // x.269
      4839386, 4653254, 4473620, 4300287, 4133059, 3971747, 3816167, 3666139, 3521488, // x.278
      3382043, 3247640, 3118115, 2993313, 2873079, 2757266, 2645728, 2538325, 2434919, // x.287
      2335380, 2239575, 2147382, 2058677, 1973342, 1891262, 1812325, 1736424, 1663453, // x.296
      1593311, 1525898, 1461118, 1398879, 1339091, 1281666, 1226519, 1173569, 1122736, // x.305
      1073944, 1027117, 982185, 939076, 897725, 858065, 820033, 783568, 748612, // x.314
      715108, 682999, 652233, 622759, 594527, 567488, 541597, 516808, 493079, // x.323
      470368, 448635, 427841, 407948, 388921, 370725, 353326, 336692, 320792, // x.332
      305596, 291075, 277202, 263950, 251292, 239204, 227663, 216646, 206130, // x.341
      196094, 186517, 177381, 168667, 160356, 152430, 144874, 137671, 130806, // x.350
      124264, 118031, 112093, 106437, 101050, 95921, 91039, 86391, 81968, // x.359
      77759, 73755, 69945, 66322, 62877, 59602, 56488, 53528, 50716, // x.368
      48043, 45505, 43093, 40803, 38629, 36564, 34604, 32745, 30980, // x.377
      29305, 27717, 26211, 24782, 23428, 22144, 20927, 19774, 18681, // x.386
      17646, 16665, 15737, 14857, 14025, 13237, 12491, 11786, 11118, // x.395
      10487, 9890, 9325, 8791, 8287, 7810, 7359, 6933, 6531, // x.404
      6151, 5792, 5453, 5133, 4831, 4547, 4278, 4024, 3785, // x.413
      3560, 3347, 3147, 2958, 2779, 2612, 2454, 2305, 2164, // x.422
      2032, 1908, 1791, 1681, 1577, 1480, 1388, 1302, 1221, // x.431
      1145, 1073, 1006, 942, 883, 827, 775, 725, 679, // x.440
      636, 595, 557, 521, 487, 456, 426, 399, 373, // x.449
      348, 325, 304, 284, 265, 248, 231, 216, 202, // x.458
      188, 175, 164, 153, 142, 133, 124, 115, 107, // x.467
      100, 93, 87, 81, 75, 70, 65, 61, 56, // x.476
      53, 49, 45, 42, 39, 36, 34, 31, 29, // x.485
      27, 25, 23, 22, 20, 19, 17, 16, 15, // x.494
      14, 13, 12, 11, 10, 9, 9, 8, 7, // x.503
      7, 6, 6, 5, 5, 5, 4, 4, 4, // x.512
      3, 3, 3, 3, 2, 2, 2, 2, 2, // x.521
      2, 2, 1, 1, 1, 1, 1, 1, 1, // x.530
      1, 1, 1, 1, 1, 1, 0, 0, // isum 100000000000
  };
  
  uint64_t komodo_maxallowed(int32_t baseid)
  {
      uint64_t mult,val = COIN * (uint64_t)10000;
      if ( baseid < 0 || baseid >= 32 )
          return(0);
      if ( baseid < 10 )
          val *= 4;
      mult = MINDENOMS[baseid] / MIND;
      return(mult * val);
  }
  
  uint64_t komodo_paxvol(uint64_t volume,uint64_t price)
  {
      if ( volume < 10000000000 )
          return((volume * price) / 1000000000);
      else if ( volume < (uint64_t)10 * 10000000000 )
          return((volume * (price / 10)) / 100000000);
      else if ( volume < (uint64_t)100 * 10000000000 )
          return(((volume / 10) * (price / 10)) / 10000000);
      else if ( volume < (uint64_t)1000 * 10000000000 )
          return(((volume / 10) * (price / 100)) / 1000000);
      else if ( volume < (uint64_t)10000 * 10000000000 )
          return(((volume / 100) * (price / 100)) / 100000);
      else if ( volume < (uint64_t)100000 * 10000000000 )
          return(((volume / 100) * (price / 1000)) / 10000);
      else if ( volume < (uint64_t)1000000 * 10000000000 )
          return(((volume / 1000) * (price / 1000)) / 1000);
      else if ( volume < (uint64_t)10000000 * 10000000000 )
          return(((volume / 1000) * (price / 10000)) / 100);
      else return(((volume / 10000) * (price / 10000)) / 10);
  }
  
  void pax_rank(uint64_t *ranked,uint32_t *pvals)
  {
      int32_t i; uint64_t vals[32],sum = 0;
      for (i=0; i<32; i++)
      {
          vals[i] = komodo_paxvol(M1SUPPLY[i] / MINDENOMS[i],pvals[i]);
          sum += vals[i];
      }
      for (i=0; i<32; i++)
      {
          ranked[i] = (vals[i] * 1000000000) / sum;
          //printf("%.6f ",(double)ranked[i]/1000000000.);
      }
      //printf("sum %llu\n",(long long)sum);
  };
  
  #define BTCFACTOR_HEIGHT 466266
  
  double PAX_BTCUSD(int32_t height,uint32_t btcusd)
  {
      double btcfactor,BTCUSD;
      if ( height >= BTCFACTOR_HEIGHT )
          btcfactor = 100000.;
      else btcfactor = 1000.;
      BTCUSD = ((double)btcusd / (1000000000. / btcfactor));
      if ( height >= BTCFACTOR_HEIGHT && height < 500000 && BTCUSD > 20000 && btcfactor == 100000. )
          BTCUSD /= 100;
      return(BTCUSD);
  }
  
  int32_t dpow_readprices(int32_t height,uint8_t *data,uint32_t *timestampp,double *KMDBTCp,double *BTCUSDp,double *CNYUSDp,uint32_t *pvals)
  {
      uint32_t kmdbtc,btcusd,cnyusd; int32_t i,n,nonz,len = 0;
      if ( data[0] == 'P' && data[5] == 35 )
          data++;
      len += iguana_rwnum(0,&data[len],sizeof(uint32_t),(void *)timestampp);
      len += iguana_rwnum(0,&data[len],sizeof(uint32_t),(void *)&n);
      if ( n != 35 )
      {
          printf("dpow_readprices illegal n.%d\n",n);
          return(-1);
      }
      len += iguana_rwnum(0,&data[len],sizeof(uint32_t),(void *)&kmdbtc); // /= 1000
      len += iguana_rwnum(0,&data[len],sizeof(uint32_t),(void *)&btcusd); // *= 1000
      len += iguana_rwnum(0,&data[len],sizeof(uint32_t),(void *)&cnyusd);
      *KMDBTCp = ((double)kmdbtc / (1000000000. * 1000.));
      *BTCUSDp = PAX_BTCUSD(height,btcusd);
      *CNYUSDp = ((double)cnyusd / 1000000000.);
      for (i=nonz=0; i<n-3; i++)
      {
          if ( pvals[i] != 0 )
              nonz++;
          //else if ( nonz != 0 )
          //    printf("pvals[%d] is zero\n",i);
          len += iguana_rwnum(0,&data[len],sizeof(uint32_t),(void *)&pvals[i]);
          //printf("%u ",pvals[i]);
      }
      /*if ( nonz < n-3 )
      {
          //printf("nonz.%d n.%d retval -1\n",nonz,n);
          return(-1);
      }*/
      pvals[i++] = kmdbtc;
      pvals[i++] = btcusd;
      pvals[i++] = cnyusd;
      //printf("OP_RETURN prices\n");
      return(n);
  }
  
  int32_t komodo_pax_opreturn(int32_t height,uint8_t *opret,int32_t maxsize)
  {
      static uint32_t lastcrc;
      FILE *fp; char fname[512]; uint32_t crc32,check,timestamp; int32_t i,n=0,retval,fsize,len=0; uint8_t data[8192];
  #ifdef _WIN32
      sprintf(fname,"%s\\%s",GetDataDir(false).string().c_str(),(char *)"komodofeed");
  #else
      sprintf(fname,"%s/%s",GetDataDir(false).string().c_str(),(char *)"komodofeed");
  #endif
      if ( (fp= fopen(fname,"rb")) != 0 )
      {
          fseek(fp,0,SEEK_END);
          fsize = (int32_t)ftell(fp);
          rewind(fp);
          if ( fsize <= maxsize-4 && fsize <= sizeof(data) && fsize > sizeof(crc32) )
          {
              if ( (retval= (int32_t)fread(data,1,fsize,fp)) == fsize )
              {
                  len = iguana_rwnum(0,data,sizeof(crc32),(void *)&crc32);
                  check = calc_crc32(0,data+sizeof(crc32),(int32_t)(fsize-sizeof(crc32)));
                  if ( check == crc32 )
                  {
                      double KMDBTC,BTCUSD,CNYUSD; uint32_t pvals[128];
                      if ( dpow_readprices(height,&data[len],&timestamp,&KMDBTC,&BTCUSD,&CNYUSD,pvals) > 0 )
                      {
                          if ( 0 && lastcrc != crc32 )
                          {
                              for (i=0; i<32; i++)
                                  printf("%u ",pvals[i]);
                              printf("t%u n.%d KMD %f BTC %f CNY %f (%f)\n",timestamp,n,KMDBTC,BTCUSD,CNYUSD,CNYUSD!=0?1./CNYUSD:0);
                          }
                          if ( timestamp > time(NULL)-600 )
                          {
                              n = komodo_opreturnscript(opret,'P',data+sizeof(crc32),(int32_t)(fsize-sizeof(crc32)));
                              if ( 0 && lastcrc != crc32 )
                              {
                                  for (i=0; i<n; i++)
                                      printf("%02x",opret[i]);
                                  printf(" coinbase opret[%d] crc32.%u:%u\n",n,crc32,check);
                              }
                          } //else printf("t%u too old for %u\n",timestamp,(uint32_t)time(NULL));
                          lastcrc = crc32;
                      }
                  } else printf("crc32 %u mismatch %u\n",crc32,check);
              } else printf("fread.%d error != fsize.%d\n",retval,fsize);
          } else printf("fsize.%d > maxsize.%d or data[%d]\n",fsize,maxsize,(int32_t)sizeof(data));
          fclose(fp);
      } //else printf("couldnt open %s\n",fname);
      return(n);
  }
  
  /*uint32_t PAX_val32(double val)
   {
   uint32_t val32 = 0; struct price_resolution price;
   if ( (price.Pval= val*1000000000) != 0 )
   {
   if ( price.Pval > 0xffffffff )
   printf("Pval overflow error %lld\n",(long long)price.Pval);
   else val32 = (uint32_t)price.Pval;
   }
   return(val32);
   }*/
  
  int32_t PAX_pubkey(int32_t rwflag,uint8_t *pubkey33,uint8_t *addrtypep,uint8_t rmd160[20],char fiat[4],uint8_t *shortflagp,int64_t *fiatoshisp)
  {
      if ( rwflag != 0 )
      {
          memset(pubkey33,0,33);
          pubkey33[0] = 0x02 | (*shortflagp != 0);
          memcpy(&pubkey33[1],fiat,3);
          iguana_rwnum(rwflag,&pubkey33[4],sizeof(*fiatoshisp),(void *)fiatoshisp);
          pubkey33[12] = *addrtypep;
          memcpy(&pubkey33[13],rmd160,20);
      }
      else
      {
          *shortflagp = (pubkey33[0] == 0x03);
          memcpy(fiat,&pubkey33[1],3);
          fiat[3] = 0;
          iguana_rwnum(rwflag,&pubkey33[4],sizeof(*fiatoshisp),(void *)fiatoshisp);
          if ( *shortflagp != 0 )
              *fiatoshisp = -(*fiatoshisp);
          *addrtypep = pubkey33[12];
          memcpy(rmd160,&pubkey33[13],20);
      }
      return(33);
  }
  
  double PAX_val(uint32_t pval,int32_t baseid)
  {
      //printf("PAX_val baseid.%d pval.%u\n",baseid,pval);
      if ( baseid >= 0 && baseid < MAX_CURRENCIES )
          return(((double)pval / 1000000000.) / MINDENOMS[baseid]);
      return(0.);
  }
  
  void komodo_pvals(int32_t height,uint32_t *pvals,uint8_t numpvals)
  {
      int32_t i,nonz; uint32_t kmdbtc,btcusd,cnyusd; double KMDBTC,BTCUSD,CNYUSD;
      if ( numpvals >= 35 )
      {
          for (nonz=i=0; i<32; i++)
          {
              if ( pvals[i] != 0 )
                  nonz++;
              //printf("%u ",pvals[i]);
          }
          if ( nonz == 32 )
          {
              kmdbtc = pvals[i++];
              btcusd = pvals[i++];
              cnyusd = pvals[i++];
              KMDBTC = ((double)kmdbtc / (1000000000. * 1000.));
              BTCUSD = PAX_BTCUSD(height,btcusd);
              CNYUSD = ((double)cnyusd / 1000000000.);
              portable_mutex_lock(&komodo_mutex);
              PVALS = (uint32_t *)realloc(PVALS,(NUM_PRICES+1) * sizeof(*PVALS) * 36);
              PVALS[36 * NUM_PRICES] = height;
              memcpy(&PVALS[36 * NUM_PRICES + 1],pvals,sizeof(*pvals) * 35);
              NUM_PRICES++;
              portable_mutex_unlock(&komodo_mutex);
              if ( 0 )
                  printf("OP_RETURN.%d KMD %.8f BTC %.6f CNY %.6f NUM_PRICES.%d (%llu %llu %llu)\n",height,KMDBTC,BTCUSD,CNYUSD,NUM_PRICES,(long long)kmdbtc,(long long)btcusd,(long long)cnyusd);
          }
      }
  }
  
  uint64_t komodo_paxcorrelation(uint64_t *votes,int32_t numvotes,uint64_t seed)
  {
      int32_t i,j,k,ind,zeroes,wt,nonz; int64_t delta; uint64_t lastprice,tolerance,den,densum,sum=0;
      for (sum=i=zeroes=nonz=0; i<numvotes; i++)
      {
          if ( votes[i] == 0 )
              zeroes++;
          else sum += votes[i], nonz++;
      }
      if ( nonz < (numvotes >> 2) )
          return(0);
      sum /= nonz;
      lastprice = sum;
      for (i=0; i<numvotes; i++)
      {
          if ( votes[i] == 0 )
              votes[i] = lastprice;
          else lastprice = votes[i];
      }
      tolerance = sum / 50;
      for (k=0; k<numvotes; k++)
      {
          ind = Peggy_inds[(k + seed) % numvotes];
          i = (int32_t)(ind % numvotes);
          wt = 0;
          if ( votes[i] != 0 )
          {
              for (j=0; j<numvotes; j++)
              {
                  if ( votes[j] != 0 )
                  {
                      if ( (delta= (votes[i] - votes[j])) < 0 )
                          delta = -delta;
                          if ( delta <= tolerance )
                          {
                              wt++;
                              if ( wt > (numvotes >> 1) )
                                  break;
                          }
                  }
              }
          }
          if ( wt > (numvotes >> 1) )
          {
              ind = i;
              for (densum=sum=j=0; j<numvotes; j++)
              {
                  den = peggy_smooth_coeffs[j];
                  densum += den;
                  sum += (den * votes[(ind + j) % numvotes]);
                  //printf("(%llu/%llu %.8f) ",(long long)sum,(long long)densum,(double)sum/densum);
              }
              if ( densum != 0 )
                  sum /= densum;
              //sum = (sum * basevolume);
              //printf("paxprice seed.%llx sum %.8f densum %.8f\n",(long long)seed,dstr(sum),dstr(densum));
              break;
          }
      }
      return(sum);
  }
  
  uint64_t komodo_paxcalc(int32_t height,uint32_t *pvals,int32_t baseid,int32_t relid,uint64_t basevolume,uint64_t refkmdbtc,uint64_t refbtcusd)
  {
      uint32_t pvalb,pvalr; double BTCUSD; uint64_t price,kmdbtc,btcusd,usdvol,baseusd,usdkmd,baserel,ranked[32];
      if ( basevolume > KOMODO_PAXMAX )
      {
          printf("paxcalc overflow %.8f\n",dstr(basevolume));
          return(0);
      }
      if ( (pvalb= pvals[baseid]) != 0 )
      {
          if ( relid == MAX_CURRENCIES )
          {
              if ( height < 236000 )
              {
                  if ( kmdbtc == 0 )
                      kmdbtc = pvals[MAX_CURRENCIES];
                  if ( btcusd == 0 )
                      btcusd = pvals[MAX_CURRENCIES + 1];
              }
              else
              {
                  if ( (kmdbtc= pvals[MAX_CURRENCIES]) == 0 )
                      kmdbtc = refkmdbtc;
                  if ( (btcusd= pvals[MAX_CURRENCIES + 1]) == 0 )
                      btcusd = refbtcusd;
              }
              if ( kmdbtc < 25000000 )
                  kmdbtc = 25000000;
              if ( pvals[USD] != 0 && kmdbtc != 0 && btcusd != 0 )
              {
                  baseusd = (((uint64_t)pvalb * 1000000000) / pvals[USD]);
                  usdvol = komodo_paxvol(basevolume,baseusd);
                  usdkmd = ((uint64_t)kmdbtc * 1000000000) / btcusd;
                  if ( height >= 236000-10 )
                  {
                      BTCUSD = PAX_BTCUSD(height,btcusd);
                      if ( height < BTCFACTOR_HEIGHT || (height < 500000 && BTCUSD > 20000) )
                          usdkmd = ((uint64_t)kmdbtc * btcusd) / 1000000000;
                      else usdkmd = ((uint64_t)kmdbtc * btcusd) / 10000000;
                      ///if ( height >= BTCFACTOR_HEIGHT && BTCUSD >= 43 )
                      //    usdkmd = ((uint64_t)kmdbtc * btcusd) / 10000000;
                      //else usdkmd = ((uint64_t)kmdbtc * btcusd) / 1000000000;
                      price = ((uint64_t)10000000000 * MINDENOMS[USD] / MINDENOMS[baseid]) / komodo_paxvol(usdvol,usdkmd);
                      //fprintf(stderr,"ht.%d %.3f kmdbtc.%llu btcusd.%llu base -> USD %llu, usdkmd %llu usdvol %llu -> %llu\n",height,BTCUSD,(long long)kmdbtc,(long long)btcusd,(long long)baseusd,(long long)usdkmd,(long long)usdvol,(long long)(MINDENOMS[USD] * komodo_paxvol(usdvol,usdkmd) / (MINDENOMS[baseid]/100)));
                      //fprintf(stderr,"usdkmd.%llu basevolume.%llu baseusd.%llu paxvol.%llu usdvol.%llu -> %llu %llu\n",(long long)usdkmd,(long long)basevolume,(long long)baseusd,(long long)komodo_paxvol(basevolume,baseusd),(long long)usdvol,(long long)(MINDENOMS[USD] * komodo_paxvol(usdvol,usdkmd) / (MINDENOMS[baseid]/100)),(long long)price);
                      //fprintf(stderr,"usdkmd.%llu basevolume.%llu baseusd.%llu paxvol.%llu usdvol.%llu -> %llu\n",(long long)usdkmd,(long long)basevolume,(long long)baseusd,(long long)komodo_paxvol(basevolume,baseusd),(long long)usdvol,(long long)(MINDENOMS[USD] * komodo_paxvol(usdvol,usdkmd) / (MINDENOMS[baseid]/100)));
                  } else price = (MINDENOMS[USD] * komodo_paxvol(usdvol,usdkmd) / (MINDENOMS[baseid]/100));
                  return(price);
              } //else printf("zero val in KMD conv %llu %llu %llu\n",(long long)pvals[USD],(long long)kmdbtc,(long long)btcusd);
          }
          else if ( baseid == relid )
          {
              if ( baseid != MAX_CURRENCIES )
              {
                  pax_rank(ranked,pvals);
                  //printf("%s M1 percentage %.8f\n",CURRENCIES[baseid],dstr(10 * ranked[baseid]));
                  return(10 * ranked[baseid]); // scaled percentage of M1 total
              } else return(basevolume);
          }
          else if ( (pvalr= pvals[relid]) != 0 )
          {
              baserel = ((uint64_t)pvalb * 1000000000) / pvalr;
              //printf("baserel.%lld %lld %lld %.8f %.8f\n",(long long)baserel,(long long)MINDENOMS[baseid],(long long)MINDENOMS[relid],dstr(MINDENOMS[baseid]/MINDENOMS[relid]),dstr(MINDENOMS[relid]/MINDENOMS[baseid]));
              if ( MINDENOMS[baseid] > MINDENOMS[relid] )
                  basevolume /= (MINDENOMS[baseid] / MINDENOMS[relid]);
              else if ( MINDENOMS[baseid] < MINDENOMS[relid] )
                  basevolume *= (MINDENOMS[relid] / MINDENOMS[baseid]);
              return(komodo_paxvol(basevolume,baserel));
          }
          else printf("null pval for %s\n",CURRENCIES[relid]);
      } else printf("null pval for %s\n",CURRENCIES[baseid]);
      return(0);
  }
  
  uint64_t _komodo_paxprice(uint64_t *kmdbtcp,uint64_t *btcusdp,int32_t height,char *base,char *rel,uint64_t basevolume,uint64_t kmdbtc,uint64_t btcusd)
  {
      int32_t baseid=-1,relid=-1,i; uint32_t *ptr,*pvals;
      if ( height > 10 )
          height -= 10;
      if ( (baseid= komodo_baseid(base)) >= 0 && (relid= komodo_baseid(rel)) >= 0 )
      {
          //portable_mutex_lock(&komodo_mutex);
          for (i=NUM_PRICES-1; i>=0; i--)
          {
              ptr = &PVALS[36 * i];
              if ( *ptr < height )
              {
                  pvals = &ptr[1];
                  if ( kmdbtcp != 0 && btcusdp != 0 )
                  {
                      *kmdbtcp = pvals[MAX_CURRENCIES] / 539;
                      *btcusdp = pvals[MAX_CURRENCIES + 1] / 539;
                  }
                  //portable_mutex_unlock(&komodo_mutex);
                  if ( kmdbtc != 0 && btcusd != 0 )
                      return(komodo_paxcalc(height,pvals,baseid,relid,basevolume,kmdbtc,btcusd));
                  else return(0);
              }
          }
          //portable_mutex_unlock(&komodo_mutex);
      } //else printf("paxprice invalid base.%s %d, rel.%s %d\n",base,baseid,rel,relid);
      return(0);
  }
  
  int32_t komodo_kmdbtcusd(int32_t rwflag,uint64_t *kmdbtcp,uint64_t *btcusdp,int32_t height)
  {
      static uint64_t *KMDBTCS,*BTCUSDS; static int32_t maxheight = 0; int32_t incr = 10000;
      if ( height >= maxheight )
      {
          //printf("height.%d maxheight.%d incr.%d\n",height,maxheight,incr);
          if ( height >= maxheight+incr )
              incr = (height - (maxheight+incr) + 1000);
          KMDBTCS = (uint64_t *)realloc(KMDBTCS,((incr + maxheight) * sizeof(*KMDBTCS)));
          memset(&KMDBTCS[maxheight],0,(incr * sizeof(*KMDBTCS)));
          BTCUSDS = (uint64_t *)realloc(BTCUSDS,((incr + maxheight) * sizeof(*BTCUSDS)));
          memset(&BTCUSDS[maxheight],0,(incr * sizeof(*BTCUSDS)));
          maxheight += incr;
      }
      if ( rwflag == 0 )
      {
          *kmdbtcp = KMDBTCS[height];
          *btcusdp = BTCUSDS[height];
      }
      else
      {
          KMDBTCS[height] = *kmdbtcp;
          BTCUSDS[height] = *btcusdp;
      }
      if ( *kmdbtcp != 0 && *btcusdp != 0 )
          return(0);
      else return(-1);
  }
  
  uint64_t _komodo_paxpriceB(uint64_t seed,int32_t height,char *base,char *rel,uint64_t basevolume)
  {
      int32_t i,j,k,ind,zeroes,numvotes,wt,nonz; int64_t delta; uint64_t lastprice,tolerance,den,densum,sum=0,votes[sizeof(Peggy_inds)/sizeof(*Peggy_inds)],btcusds[sizeof(Peggy_inds)/sizeof(*Peggy_inds)],kmdbtcs[sizeof(Peggy_inds)/sizeof(*Peggy_inds)],kmdbtc,btcusd;
      if ( basevolume > KOMODO_PAXMAX )
      {
          printf("komodo_paxprice overflow %.8f\n",dstr(basevolume));
          return(0);
      }
      if ( strcmp(base,"KMD") == 0 || strcmp(base,"kmd") == 0 )
      {
          printf("kmd cannot be base currency\n");
          return(0);
      }
      numvotes = (int32_t)(sizeof(Peggy_inds)/sizeof(*Peggy_inds));
      memset(votes,0,sizeof(votes));
      //if ( komodo_kmdbtcusd(0,&kmdbtc,&btcusd,height) < 0 ) crashes when via passthru GUI use
      {
          memset(btcusds,0,sizeof(btcusds));
          memset(kmdbtcs,0,sizeof(kmdbtcs));
          for (i=0; i<numvotes; i++)
          {
              _komodo_paxprice(&kmdbtcs[numvotes-1-i],&btcusds[numvotes-1-i],height-i,base,rel,100000,0,0);
              //printf("(%llu %llu) ",(long long)kmdbtcs[numvotes-1-i],(long long)btcusds[numvotes-1-i]);
          }
          kmdbtc = komodo_paxcorrelation(kmdbtcs,numvotes,seed) * 539;
          btcusd = komodo_paxcorrelation(btcusds,numvotes,seed) * 539;
          //komodo_kmdbtcusd(1,&kmdbtc,&btcusd,height);
      }
      for (i=nonz=0; i<numvotes; i++)
      {
          if ( (votes[numvotes-1-i]= _komodo_paxprice(0,0,height-i,base,rel,100000,kmdbtc,btcusd)) == 0 )
              zeroes++;
          else
          {
              nonz++;
              sum += votes[numvotes-1-i];
              //if ( (i % 10) == 0 )
              //    fprintf(stderr,"[%llu] ",(long long)votes[numvotes-1-i]);
          }
      }
      //fprintf(stderr,"kmdbtc %llu btcusd %llu ",(long long)kmdbtc,(long long)btcusd);
      //fprintf(stderr,"komodo_paxprice nonz.%d of numvotes.%d seed.%llu %.8f\n",nonz,numvotes,(long long)seed,nonz!=0?dstr(1000. * (double)sum/nonz):0);
      if ( nonz <= (numvotes >> 1) )
      {
          return(0);
      }
      return(komodo_paxcorrelation(votes,numvotes,seed) * basevolume / 100000);
  }
  
  uint64_t komodo_paxpriceB(uint64_t seed,int32_t height,char *base,char *rel,uint64_t basevolume)
  {
      uint64_t baseusd,basekmd,usdkmd; int32_t baseid = komodo_baseid(base);
      if ( height >= 236000 && strcmp(rel,"kmd") == 0 )
      {
          usdkmd = _komodo_paxpriceB(seed,height,(char *)"USD",(char *)"KMD",SATOSHIDEN);
          if ( strcmp("usd",base) == 0 )
              return(komodo_paxvol(basevolume,usdkmd) * 10);
          baseusd = _komodo_paxpriceB(seed,height,base,(char *)"USD",SATOSHIDEN);
          basekmd = (komodo_paxvol(basevolume,baseusd) * usdkmd) / 10000000;
          //if ( strcmp("KMD",base) == 0 )
          //    printf("baseusd.%llu usdkmd.%llu %llu\n",(long long)baseusd,(long long)usdkmd,(long long)basekmd);
          return(basekmd);
      } else return(_komodo_paxpriceB(seed,height,base,rel,basevolume));
  }
  
  /*uint64_t komodo_paxpriceB(uint64_t seed,int32_t height,char *base,char *rel,uint64_t basevolume)
  {
      uint64_t baseusd,basekmd,usdkmd; int32_t baseid = komodo_baseid(base);
      //if ( strcmp(rel,"KMD") != 0 || baseid < 0 || MINDENOMS[baseid] == MINDENOMS[USD] )
      //    return(_komodo_paxpriceB(seed,height,base,rel,basevolume));
      //else
      {
          baseusd = _komodo_paxpriceB(seed,height,base,(char *)"USD",SATOSHIDEN);
          usdkmd = _komodo_paxpriceB(seed,height,(char *)"USD",(char *)"KMD",SATOSHIDEN);
          basekmd = (komodo_paxvol(basevolume,baseusd) * usdkmd) / 10000000;
          if ( strcmp("KMD",base) == 0 )
              printf("baseusd.%llu usdkmd.%llu %llu\n",(long long)baseusd,(long long)usdkmd,(long long)basekmd);
          return(basekmd);
      }
  }*/
  
  uint64_t komodo_paxprice(uint64_t *seedp,int32_t height,char *base,char *rel,uint64_t basevolume)
  {
      int32_t i,nonz=0; int64_t diff; uint64_t price,seed,sum = 0;
      if ( ASSETCHAINS_SYMBOL[0] == 0 && chainActive.LastTip() != 0 && height > chainActive.LastTip()->nHeight )
      {
          if ( height < 100000000 )
          {
              static uint32_t counter;
              if ( counter++ < 3 )
                  printf("komodo_paxprice height.%d vs tip.%d\n",height,chainActive.LastTip()->nHeight);
          }
          return(0);
      }
      *seedp = komodo_seed(height);
      portable_mutex_lock(&komodo_mutex);
      for (i=0; i<17; i++)
      {
          if ( (price= komodo_paxpriceB(*seedp,height-i,base,rel,basevolume)) != 0 )
          {
              sum += price;
              nonz++;
              if ( 0 && i == 1 && nonz == 2 )
              {
                  diff = (((int64_t)price - (sum >> 1)) * 10000);
                  if ( diff < 0 )
                      diff = -diff;
                  diff /= price;
                  printf("(%llu %llu %lld).%lld ",(long long)price,(long long)(sum>>1),(long long)(((int64_t)price - (sum >> 1)) * 10000),(long long)diff);
                  if ( diff < 33 )
                      break;
              }
              else if ( 0 && i == 3 && nonz == 4 )
              {
                  diff = (((int64_t)price - (sum >> 2)) * 10000);
                  if ( diff < 0 )
                      diff = -diff;
                  diff /= price;
                  printf("(%llu %llu %lld).%lld ",(long long)price,(long long)(sum>>2),(long long) (((int64_t)price - (sum >> 2)) * 10000),(long long)diff);
                  if ( diff < 20 )
                      break;
              }
          }
          if ( height < 165000 || height > 236000 )
              break;
      }
      portable_mutex_unlock(&komodo_mutex);
      if ( nonz != 0 )
          sum /= nonz;
      //printf("-> %lld %s/%s i.%d ht.%d\n",(long long)sum,base,rel,i,height);
      return(sum);
  }
  
  int32_t komodo_paxprices(int32_t *heights,uint64_t *prices,int32_t max,char *base,char *rel)
  {
      int32_t baseid=-1,relid=-1,i,num = 0; uint32_t *ptr;
      if ( (baseid= komodo_baseid(base)) >= 0 && (relid= komodo_baseid(rel)) >= 0 )
      {
          for (i=NUM_PRICES-1; i>=0; i--)
          {
              ptr = &PVALS[36 * i];
              heights[num] = *ptr;
              prices[num] = komodo_paxcalc(*ptr,&ptr[1],baseid,relid,COIN,0,0);
              num++;
              if ( num >= max )
                  return(num);
          }
      }
      return(num);
  }
  
  void komodo_paxpricefeed(int32_t height,uint8_t *pricefeed,int32_t opretlen)
  {
      double KMDBTC,BTCUSD,CNYUSD; uint32_t numpvals,timestamp,pvals[128]; uint256 zero;
      numpvals = dpow_readprices(height,pricefeed,&timestamp,&KMDBTC,&BTCUSD,&CNYUSD,pvals);
      memset(&zero,0,sizeof(zero));
      komodo_stateupdate(height,0,0,0,zero,0,0,pvals,numpvals,0,0,0,0,0,0,zero,0);
      if ( 0 )
      {
          int32_t i;
          for (i=0; i<numpvals; i++)
              printf("%u ",pvals[i]);
          printf("komodo_paxpricefeed vout OP_RETURN.%d prices numpvals.%d opretlen.%d kmdbtc %.8f BTCUSD %.8f CNYUSD %.8f\n",height,numpvals,opretlen,KMDBTC,BTCUSD,CNYUSD);
      }
  }
  
  uint64_t PAX_fiatdest(uint64_t *seedp,int32_t tokomodo,char *destaddr,uint8_t pubkey33[33],char *coinaddr,int32_t height,char *origbase,int64_t fiatoshis)
  {
      uint8_t shortflag = 0; char base[4]; int32_t i,baseid; uint8_t addrtype,rmd160[20]; int64_t komodoshis = 0;
      *seedp = komodo_seed(height);
      if ( (baseid= komodo_baseid(origbase)) < 0 || baseid == MAX_CURRENCIES )
      {
          if ( 0 && origbase[0] != 0 )
              printf("[%s] PAX_fiatdest illegal base.(%s)\n",ASSETCHAINS_SYMBOL,origbase);
          return(0);
      }
      for (i=0; i<3; i++)
          base[i] = toupper(origbase[i]);
      base[i] = 0;
      if ( fiatoshis < 0 )
          shortflag = 1, fiatoshis = -fiatoshis;
      komodoshis = komodo_paxprice(seedp,height,base,(char *)"KMD",(uint64_t)fiatoshis);
      //printf("PAX_fiatdest ht.%d price %s %.8f -> KMD %.8f seed.%llx\n",height,base,(double)fiatoshis/COIN,(double)komodoshis/COIN,(long long)*seedp);
      if ( bitcoin_addr2rmd160(&addrtype,rmd160,coinaddr) == 20 )
      {
          PAX_pubkey(1,pubkey33,&addrtype,rmd160,base,&shortflag,tokomodo != 0 ? &komodoshis : &fiatoshis);
          bitcoin_address(destaddr,KOMODO_PUBTYPE,pubkey33,33);
      }
      return(komodoshis);
  }
  